ac3a1548f8
1) Don't check for getopt returning '?', we have a default case. 2) Check if the priority is LOG_KERN correctly - in practice LOG_KERN is 0, so it makes no difference. OpenBSD fixed a different nearby bug that we don't have 'cos our definition of LOG_MAKEPRI is different to OpenBSD's. Copy a comment from OpenBSD, observing that LOG_KERN is 0. Inspired by PR: 67139